Mail folders aren't being created

I'm having a little bit of trouble. Whenever I create a new mail user I don't get any of the other folders (E.G. junk, trash, sent etc). I'm pretty sure that this is up to your mail client to do, and I do have it set up. But for some reason it isn't working anymore.

Here is part of my roundcube config file:

Code:

// only list folders within this path
$rcmail_config['imap_root'] = '';
// store draft message is this mailbox
// leave blank if draft messages should not be stored
$rcmail_config['drafts_mbox'] = 'Drafts';
// store spam messages in this mailbox
$rcmail_config['junk_mbox'] = 'Junk';
// store sent message is this mailbox
// leave blank if sent messages should not be stored
$rcmail_config['sent_mbox'] = 'Sent';
// move messages to this folder when deleting them
// leave blank if they should be deleted directly
$rcmail_config['trash_mbox'] = 'Trash';
// display these folders separately in the mailbox list.
// these folders will automatically be created if they do not exist
$rcmail_config['default_imap_folders'] = array('INBOX', 'Drafts', 'Sent', 'Junk', 'Trash');

And I was just poking around in my ISPConfig error logs, and found this: